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प्रश्न
Select the correct answer from the choices a,b,c and d which are given. Write only the letter corresponding to the correct answer.
During ionization metals lose electrons, this change can be called _______________.
विकल्प
Oxidation
Reduction
Redox
Displacement
उत्तर
Oxidation
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संबंधित प्रश्न
Choosing only words from the following list, write down the appropriate words to fill in the blanks (a) to (e) below:
anions, anode, cathode, cations, electrode, electrolyte, nickel, voltameter.
The electroplating of an article with nickel requires an (a) ______ which must be a solution containing (b) ______ ions. The article to be plated is placed as the (c) ______ of the cell in which the plating is carried out. The (d) ______ of the cell is made from pure nickel. The ions that are attracted to the negative electrode and discharged are called (e) ______.
Aqueous solution of nickel sulphate contains \[\ce{Ni^{+2}}\] and \[\ce{SO^{-2}_{4}}\] ions.
- Which ion moves towards the cathode?
- What is the product at the anode?
Select the correct answer from the choices a,b,c and d which are given. Write only the letter corresponding to the correct answer.
A compound which liberates reddish brown gas around the anode during the electrolysis in its molten state is:______________
Which of these will act as a non-electrolyte?
Give appropriate scientific reasons for the following statement:
During electrolysis of molten lead bromide, graphite anode is preferred to other electrodes.
Give reasons why sodium chloride will conduct electricity only in the fused or aqueous solution state.
Select the ion, that would get selectively discharge from the aqueous mixture of the ions listed below :
Pb2+, Ag+, Cu+
Distinguish by a chemical test, ammonium sulphate and sodium sulphate.
Copper sulphate solution is electrolysed using copper electrodes.
Write the equation for the reaction occurring at the Anode electrode.
Classify the following substance:
Dilute sulphuric acid
